h264pred: fix "warning: initialization discards const qualifier from pointer target type"

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/h264pred.c

@@ -278,12 +278,12 @@ static void pred4x4_horizontal_up_rv40_nodown_c(uint8_t *src,
 static void pred4x4_tm_vp8_c(uint8_t *src, const uint8_t *topright,
                              ptrdiff_t stride)
 {
-    uint8_t *cm = ff_cropTbl + MAX_NEG_CROP - src[-1-stride];
+    const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP - src[-1-stride];
     uint8_t *top = src-stride;
     int y;
 
     for (y = 0; y < 4; y++) {
-        uint8_t *cm_in = cm + src[-1];
+        const uint8_t *cm_in = cm + src[-1];
         src[0] = cm_in[top[0]];
         src[1] = cm_in[top[1]];
         src[2] = cm_in[top[2]];
@@ -304,12 +304,12 @@ static void pred16x16_plane_rv40_c(uint8_t *src, ptrdiff_t stride)
 
 static void pred16x16_tm_vp8_c(uint8_t *src, ptrdiff_t stride)
 {
-    uint8_t *cm = ff_cropTbl + MAX_NEG_CROP - src[-1-stride];
+    const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP - src[-1-stride];
     uint8_t *top = src-stride;
     int y;
 
     for (y = 0; y < 16; y++) {
-        uint8_t *cm_in = cm + src[-1];
+        const uint8_t *cm_in = cm + src[-1];
         src[0]  = cm_in[top[0]];
         src[1]  = cm_in[top[1]];
         src[2]  = cm_in[top[2]];
@@ -386,12 +386,12 @@ static void pred8x8_dc_rv40_c(uint8_t *src, ptrdiff_t stride)
 
 static void pred8x8_tm_vp8_c(uint8_t *src, ptrdiff_t stride)
 {
-    uint8_t *cm = ff_cropTbl + MAX_NEG_CROP - src[-1-stride];
+    const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP - src[-1-stride];
     uint8_t *top = src-stride;
     int y;
 
     for (y = 0; y < 8; y++) {
-        uint8_t *cm_in = cm + src[-1];
+        const uint8_t *cm_in = cm + src[-1];
         src[0] = cm_in[top[0]];
         src[1] = cm_in[top[1]];
         src[2] = cm_in[top[2]];